The witness is a puzzle-exploration game, which basically means you have to solve puzzles to advance in the game and find out more about the story. It's made by Jonathan Blow and his theme, who also made Braid. A week ago (or something) a trailer for the game emerged, showing in-game graphics and gameplay. This happened during the PS4 announcement. This means that The Witness will be PS4 exclusive for a while, but they're not staying that for long.
Trailer:
http://www.youtube.com/watch?v=Brd0F7rlXCI
Work in progress screenshots:
iPad gameplay:
http://www.youtube.com/watch?v=pXuPKOy_PXU
The story so far seems like one where you get placed on an island, and you have to figure out what you're doing there, and what the thing is with all the constructions on the island, much like other well-known games that feature puzzles and islands. There is no narration, nor human interaction. There seems to be no musical soundtrack either. The design team has put much focus on sound design, since some of the clues to solve puzzles will rely on sounds too.
The project has an extensive blog: http://the-witness.net/news/, which I've followed from the near-beginning. Inside are lots of interesting articles about game development in general, but also specific problems that arose during the making of this game, and how they have been tackled. It's also very cool to see the development of the game environment in so much detail.
I'm looking forward to this game, especially since I enjoyed Braid so much. Though looking at the trailer the movement of all the objects in the game seems very static to me. The environment is gorgeous though.
What do you think?